Marshall f



(No Model.)

M. P.. EATON. GOMBINED EXHAUST HEAD AND SMOKE CLEANER.

No. 453,143 I Patented May 26, 1891.

UNITED STATES PATENT FFICE MARSHALL F. EATON, OF CHICAGO, ILLINOIS,ASSIGNOR OF ONE-HALF TO AARON G. OROMER, OF SAME PLACE.

COMBINED EXHAUST-HEAD AND SMOKE-CLEANER.

SPECIFICATION forming part of Letters Patent No. 453,143, dated May 26,1891.

Application filed September 1, 1890. Serial No. 363,667. (No model.)

To all whom it may concern:

Be it known that I, MARSHALL F. EATON, a citizen of the United States,residing in the city of Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements in aCombined EX- haust-Head and Smoke-Cleaner, of which the following is aspecification.

This invention relates to improvements in that class of devices known asexhaustheads, usually applied to the discharge end of exhaust-steampipes, above the roofs of buildings to condense the exhaust-steam andcarry oif the condensation, which would otherwise fall in a fine sprayto the streets.

The prime object of this invention is to utilize such an exhaust-headfor cleansing soot from the smoke of the furnaces in the building priorto its discharge into the air, whereby the smoke is rendered light,clean, and almost colorless, and the smoke nuisance, so common in mostlarge cities or manufacturing districts, especially where soft coal isused to any extent, is avoided.

Another object is to utilize the exhauststeam for drawing the smoke fromthe smokestacks into the exhaust, whereby the choking or smothering ofthe smoke-stack or chimney is avoided, and at the same time the draftthereof is materially promoted. These objects are attained by thedevices illustrated in the accompanying drawings, in which Figure 1represents a sectional elevation through a device embodying myinvention, showing the same as applied to a smoke-stack or chimney; Fig.2, a horizontal section through the smoke-chamber, and Fig. 3 a similarview through the exhaust-head.

Similar letters of reference indicate the same parts in the severalfigures of the drawings.

Referring by letter to the accompanying drawings, A indicates the roofof a building, and B the chimney or smoke-stack for the furnacescontained in the building. Upon the roof is located a smoke-chamber O,circular in horizontal section and having a generally elliptical form incross or vertical section, into one side of which opens a pipe D,connecting with the chimney or smoke-stack, the chamber, forconvenience, being located adjacent to the chimney. Through the lowerside of the smoke-chamber enters the exhaust-steam pipe E, whichprojects somewhat into the chamber, but at one side of the centerthereof, as more clearly illustrated in Fig. 2, and registers with theinwardly-projecting ends of a pipe F, connecting the top of thesmokechamber with one side of the exhaust-head G, the opposing ends ofthe pipes E and F being slightly separated from but in a line with eachtrated in Fig. 2, and is directed to the escapepipe F, into which it isdrawn, as before described. The combined smoke and steam is dischargedfrom the pipe F into the exhausthead G, where it is thoroughly saturatedby the steam before its escape from the exhaust-head, and all the sootcontained in the smoke is caught by the condensationfrom the steam anddrawn off, instead of being emitted from the chimney with the smoke, aswould otherwise occur. To accomplish this result, the intermingled smokeand steam must be detained in the exhaust-head a sufficient length oftime to insure the thorough condensation of the steam, to which end anexhaust-head of any desirable or well-known construction may beemployed; but I prefer to employ such a one as is illustrated in thedrawings, consisting of the main chamber a, supported upon the roof bylegs I) or in any other similar manner, the walls 0 of the lower portionof which converge and terminate in a discharge-spout d, which may beconnected by suitable pipes with the drain-pipe or sewer. The upper endof the main chamber is closed, excepting a central opening, throughwhich the cleansed smoke is discharged and from which extends downwardlya short internal pipe e of about the capacity of the pipe F, terminatingWithin a funnel f, suspended in the chamber a and serving to so protecttheinner end of the discharge-pipe e that the steam and cleansed smokewill be detained in the main chamber sufficiently long tothoroughlysaturate the smoke with the steam and drench out all of thesoot from the smoke, which latter, in escaping from the exhaust-headwith the comparatively small amount of steam, is compelled to traverse atortuous passage. Vithin the main chamber a of the exhaust-head is alsolocated a curved deflector h, extending substantially the full length ofthe chamber, parallel with the side walls thereof in a verticalplane,but in ahorizontal plane is struck on a different are of a circle,so that it begins, say, at about the point I, one-eighth of an inch fromthe side wall of the chamber, near the point of connection of the pipeF, while at the opposite side of the chamber-say at a point J-it meetswith and is attached to the walls of the chamber, thus forming aconverging passage between the deflector and the walls of the chamber,behind which the heavier portions of thesoot and dirt will pass with aportion of the iurushing steam and follow along the tapering wall atethe bottom of the chamber, from whence they will be discharged insteadof falling into the funnel f, as would be the case with the greaterportion thereof were this deflector not employed. This deflectorsubserves the further purpose of breaking up the steam-jet as it entersfrom the pipes F and renders the passage of the steam through theexhaust-head still more tortuous, thereby promoting the condensation ofthe steam and the effectual cleansing of the soot from the smoke to themaximum degree.

The chimney should be provided just above the connection therewith ofthe pipe D with a damper g, capable of being operated in anysuitable-manner from the i nterior of the building whenever theapparatus before described is in operation to direct the smoke to thepipe D and prevent its escape from the chimney-top in the usual manner.

In practice it is not absolutely essential to the successful operationof my device that the smoke enter the smoke-chamber at one side thereof,or that the exhaust-steam pipes connected with the chamber at one sideof the center for drawing off the smoke, or that the chamber have theexact form illustrated in the drawings, for various other forms andarrangements may be adopted without departing from the spirit of myinvention; but I have found the form and arrangement shown in thedrawings most desirable and efficacious in accomplishing the objects ofmy invention.

Having described my invention, what I claim, and desire to secure byLetters Patent, 1s-

1. The combination, with the smoke-chamber connected with a smoke-stackand the exhaust-steam pipe opening into said cham ber, of anexhaust-head and a pipe connecting said exhaust-head with thesmoke-chambor,said pipe registeringwith and constituting a continuationof the exhaust-pipe, substantially as described.

2. The combination, with the smoke-chamber connected at one side thereofwith asmokestack and the exhaust-steam pipe opening into said chamber toone side of the center thereof, of an exhaust-head and a pipe connectingsaid exhaust-head and the smokechamber, said pipe registering with andconstituting a continuation of the exhaust-steam pipe, substantially asdescribed.

3. The combination,with the smoke-chamber connected with a smoke-stackand the exhauststeam pipe opening into said chamber, of an exhaust-headcomprising a main chamber provided with an external discharge-pipe atthelower end thereof, an internal dischargepipe at the upper endthereof, and a funnel located between the inner end of said internalpipe and the discharge-pipe, and a pipe connecting said exhaust-headwith the smokechamber, registering with and constituting a continuationof the exhaust-steam pipe, substantially as described.

4. The combination,with the smoke-chamber connected with a smoke-stackand an exhaust-steam pipe opening into said chamber, of an exhaust-headcomprising a main chamber provided with an external discharge-pipe atthe lower end, an internal discharge-pipe at the upper end, a funnellocated between the inner end of said internal pipe and the externalpipe, and a curved deflector partially surrounding said internaldischarge-pipe and located above the funnel, and a pipe connecting saidexhaust-head at one side thereof with the smoke-chamber, registeringwith and constitutirig a continuation of the exhaust-steam pipe,substantially as described.

5. The combination, with the smoke-chamber connected at one sidethereofwith a smokestack and the exhaust-steam pipe opening into said chamberto one side of the center, of an exhaust-head comprisingthe main chamberprovided with an external discharge-pipe at the lower end, an internaldischarge-pipe at the upper end, a funnel located between the inner endof said internal pipe and the external pipe, and a curved deflectorpartially surrounding said internal discharge-pipe and located above thefunnel, and a pipe connecting said exhaust-head at one side thereof withthe smoke-chamber, registering with and constitutin g a continuation ofthe exhaust-steam pipe, substantially as described.

MARSHALL F. EATON. \Vitnesses:

, W. R. OMOHUNDRO, R. C. OMOHUNDRO.

